Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 422

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-422 A Coronado CA SNDGCA0263Z  965H FRACTEL, LLC 732      
858-422 0 Coronado CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2022-05-01   
858-422 1 Coronado CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2022-05-01   
858-422 2 Coronado CA SNDGCA0263Z  965H FRACTEL, LLC 732   2021-11-25   
858-422 3 Coronado CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2021-11-26   
858-422 4 Coronado CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2021-11-26   
858-422 5 Coronado CA SNDGCAJW6MD  073H TELNYX LLC 732   2024-11-08   
858-422 6 Coronado CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2022-09-03   
858-422 7 Coronado CA ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2021-12-11   
858-422 8 Coronado CA ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2021-12-11   
858-422 9 Coronado CA ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2021-12-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.